several complications attributed with herpes virus related infections and the emergence of drug resistant viruses prompt scientists to search for new drugs. several terpenoids and coumarins have shown anti hsv effects while no sesquiterpene coumarin have been previously tested for hsv treatment. three sesquiterpene coumarins [badrakemin acetate (1), kellerin (2) and samarcandin diasteromer (3) ...

ferula gummosa boiss is a good source of biologically active compounds such as monoterpene and sesquiterpene derivatives. there are also several reports on antioxidant effects of these compounds. the aim of this study was to investigate the effect of daily administration of f. gummosa root hydro-alcoholic extract on serum oxidant-antioxidant status. twenty four wistar rats were randomly divided...

The xanthippe group of species of the genus Urophora Robineau-Desvoidy, 1830 is revised and keyed. It contains seven species with a yellow area on the scutum medial to the notopleuron: Urophora bakhtiari new species (from flowerheads of Cousinia archibaldii), Urophora dirlbeki new species (from flowerheads of Onopordum acanthium), U. iani Korneyev & Merz 1998, U. impicta (Hering 1942) (= Uropho...

Two new 9,19-cycloartane triterpene glycosides 1-2, together with four known compounds--26-deoxyactein (3), actein (4), 7,8-didehydro-26-deoxyactein (5) and cimiaceroside B (6)--were isolated from the rhizome of Cimicifuga foetida. The new triterpene glycosides were identified as 23-O-methyl-24-deoxy-2'-O-(3''-methylmalonyl)-cimiaceroside B (1) and 2'-O-(3''-methylmalonyl)actein (2) based on an...